Rotary paper-cutter for printing-presses.



No. 636,997. Patented Nov. l4, I899. W. S. HUSUN.

ROTARY PAPER CUTTER FOR PRINTING PRESSES.

(Application filed .m 1, 1599.) I

2 Sheets-Shoot I.

(No Nudel.)

No. 636,997. Patented Nov. l4, I899;

W. S. RUSON. v ROTARY PAPER CUTTER FOR PRINTING PRESSES.

(Application filed m9 1, 1599.

2 Shasta-Shut 2,

(No Nodal.)

Y: nbmus PETERS co.. Pumourku. WASHINGTON. a, c

UNITED STATES PATENT OFFICE.

WINFIELD S. HUSON, OF DERBY, CONNECTICUT, ASSIGNOR TO THE WHIT- LOCKMACHINE COMPANY, OF SAME PLACE.

ROTARY PAPER-CUTTER FOR PRINTING-PRES SES.

SPECIFICATION forming part of Letters Patent No. 636,997, dated November14, 1899.

Application filed July 899- Elerial N 722,485. (No model.)

To aZZ whom it may concern: its outer end with a larger drivingpinion G,Be it known that I, WINFIELD S. HUSON, of meshing into the cylinder-gearII, by which Derby, in the county of New Haven and State the cutters aredriven. The upper cutter I, of Connecticut, haveinventedanewImprovewhich is provided in the usual manner with a 5 mentin Rotary Paper-Cutters for Cylinder cutting edge 11, entering thecutting-groove a Printing-Presses; and Ido hereby declare the of thelower cutter A, is mounted upon. a following, when taken in connectionwith the shaft J, the ends of which are located in fixed accompanyingdrawings and the letters of open bearings K and K, respectively formedreference marked thereon, to be a full, clear, in the side pieces C andC. These open bear- 10 and exact description of the same, and which ingspermit the shaft J to be lifted upward said drawings constitute part ofthis specifiout of them for the bodily removal of the upcation, andrepresent, in per cutter I and the said shaft from the press Figure 1, aplan View showing the applicaorlifted out of the said bearings and movedtion of my invention to a front-delivery cylinto a retired positionwithout being removed I5 inder printing-press; Fig. 2, a View in sidefrom the press.

elevation of the outer side of the press; Fig. For the describedretirement of the upper 3, a detached sectional view showing theupcutter and its shaft the bearing K is formed per and lower arms andthe rock-shaft to with a vertical front wall and with a lower which thesaid arms are secured; Fig. 4c, aderear wall having a shallow seat Kformed 2o tached view of the fixed open bearing of the close to it inthe side piece C, as shown in inner end of the shaft of the uppercutter. Fig. 2, while the bearing K is formed with a My inventionrelates to an improvement in vertical front wall and a lower rear Wall,rotary paper-cutters for cylinder printingwhich is beveled at K as shownin Fig. 4. presses, the object being to produce a simple, The outer endof the shaft J is extended to 25 compact, and convenient deviceconstructed form a handle J, as shown in Fig. 1.

with particular reference to the temporary For the retirement of theuppercutter and retirement or bodily removal of the upper its shaft Iemploy two arrnsLand L, located cutter. near its opposite ends and bothrigidly se- With these ends in view my invention concured at their rearends to a rock-shaft M, o sists in certain details of construction andmounted at its ends in the side pieces C and combinations of parts, aswill be hereinafter C of the frame. The arm L, which is the described,and pointed out in the claims. outer arm, extends over the shaft J, asseen As herein shown, my invention is applied in Fig. 3, while the armL, which is located to a cylinder printing-press of the class in at theinner end of the shaft M, extends un- 35 which the sheet is deliveredfrom on top and der the shaft J, as also shown in the same in front ofthe impression-cylinder; but I figure. A heavy pin or stud L mounted inwould have it understood that it is not limthe arm L, is arranged toengage with the upited to presses of that particular construcper edge ofthe side piece C, so as to limit the tion, but may be used whereveravailable in downward movement of the arm L, and hence 9o 40 otherpressesas, for instance, those presses the downward movement of the armL and known as back-delivery presses. the rocking movement of the shaftMr In carrying out my invention I mount the When it is desired to removethe upper cutlower cutter A, which is formed in the usual ter from themachine, the shaft J is grasped manner witha groove a, upon ahorizontallyand lifted bodily out of its open bearings K 45 arrangedshaft B, the ends of which are perand K and drawn away from the arms Land manently journaled in the side pieces C and L, which are thenreturned by gravity to C of the press-frame. This shaft is providedtheir normal positions, in which they are held at one end with a pinionD, meshing into an by the engagement of the pin L When,howintermediatepinion E, mounted upon the inever, it is desired not to remove the upperI00 50 nor end of a short shaft F, journaled in the cutter and its shaftbodily from the machine,

side piece C of the frame and provided at but simply to throw the saidcutter out of action and temporarily retire it, the handle end J of theshaft J is seized and lifted vertically against the arm L, which, beingrigidly mounted upon the rock-shaft M, turns the said shaft andsimultaneously lifts the arm L against the under face of the oppositeend of the shaft J, whereby both ends of the shaft are simultaneouslylifted out of their bearings. The handle end J of the shaft is thenpushed rearward, so as to cause the outer end of the shaft to drop intothe shallow seat K at which time the opposite end of the shaft will rideup over the bevel K of the bearing K and rest upon the upper edge of theside piece 0 at the point K (Shown in Fig. 4:.) The shaft will rest inthis position of retirement until it is desired to again bring thecutters into operation, when the handle end J of the shaft J is liftedand the shaft worked out of its shallow seat K, after which the ends ofthe shaft will gravitate back into the open bearings K and K. I am thusenabled very conveniently to remove the upper cutter bodily from thepress either for sharpening it or for getting it out of the wayaltogether or to temporarily retire it-as, for instance, when the presshas become fouled by a sheet of paper.

I wish particularly to call attention to the fact that although thebearings of the upper; shaft are open and permit the bodily removal; orretirement-of the shaft they are fixed bearings and prevent the shaftfrom getting out "of alinement when in its operating position, being inthis respect superior to pivotal or otherwise movable bearings for theupper shaft.

I would have it understood that I do not limit myself to the exactdetails of construction herein shown and described, but hold myself atliberty to make such changes as fairly fall within the spirit and scopeof my invention.

Having fullydesoribed my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a rotary cutter for cylinder printingpresses, the combination witha lower cutter, of an upper cutter, a shaft upon which the same ismounted, fixed open bearings for the upper shaft, whereby the same maybe lifted out of the said bearings, and means coacting with the uppershaft for lifting it into a retired position in the press when it isdesired not to remove it bodily therefrom, the said means comprising arock-shaft and two arms rigidly secured to the respective ends thereof,one arm extending under one end of the upper-cutter shaft and the otherarm extending-over the other end of the said upper-cutter-shaft.

2. In a rotary cutter for cylinder printingpresses, the combination withthe lower cutter, of an upper cutter, a shaft therefor, fixed openbearings for the ends of the said shaft one end of which is extended toform a handle, a

rock-shaft, and two arms rigidly secured to the said rock-shaft at theends thereof, one arm extending under one end of the uppercutter shaft,and the other arm extending over the other end of the upper-cuttershaft.

3. In a rotary cutter for cylinder printingpresses, the combination withthe lower cut ter, of an upper cutter, a shaft therefor having its outerend extended to form a handle, fixed open bearings for the shaft, arockshaft, an arm rigidly secured to the said rockshaft and extendingover the handle end of upper-cutter shaft,and a corresponding armsecured to the inner end of the rock-shaft, and extending under theinner end of the upper-cutter shaft.

4. In a rotary cutter for cylinder printing presses, the combinationwith the lower cutter, of an upper cutter, a shaft therefor, fixed openbearings for the upper shaft, a seat formed adjacent to the hearingwhich receives the outer end of the said shaft for the reception of thesaid shaft when it is lifted iint'oits retired position in the press,and means coacting with the said upper-cutter shaft for lit-ting it intoits said retired position, and comprising a rock-shaft and two arms'locatedat the opposite ends thereof, and respectively extending underand over the opposite ends of the upper-cutter shaft.

5. In a rotarycutter forcylinder printing- .presses, the combinationwith the lower cutter, of an upper cutter, a shaft therefor, fixed openbearings for the ends of the said .shaft the outer bearing having a seatformed closely adjacent to its rear wall, and the rear wall of the innerbearing being beveled,:and meanscoacting with the said upper-cuttershaft for lifting it in to itssaid retiredposition, and comprising arock-shaft and two arms located at the opposite ends thereof, and T6-spectively extending under and over the op posite ends of theupper-cutter shaft.

6. In a rotarycutter for cylinder printingpresses, the combination witha lower cutter, a shaft therefor, gearing between the said shaft and thecylinder-gear, an upper cutter, a shaft therefor, a pinion mounted uponthe said shaft, and meshing into a pinion mounted upon the lower shaftfrom which it is driven, fixed open bearings for the endsof the shaft ofthe upper cutter, whereby the said shaft may be bodily removed from thepress, and means coacting with the said upper-cutter shaft for liftingit into its said retired position, and comprising a rock-shaft and twoarms located at the opposite ends thereof,'and respectively extendingunder and over the opposite ends of the upper-cutter shaft.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

WINFIELD S. H USON. Witnesses:

JULIUS G. DAY, WALTER RANDALL.

